APA (7th ed.) Citation

Laszlo, E. (1973). The purpose of mankind. Zygon, 8, 310-324.

Chicago Style (17th ed.) Citation

Laszlo, Ervin. "The Purpose of Mankind." Zygon 8 (1973): 310-324.

MLA (8th ed.) Citation

Laszlo, Ervin. "The Purpose of Mankind." Zygon, vol. 8, 1973, pp. 310-324.

Warning: These citations may not always be 100% accurate.